Fabrication of nanoporous superstructures through hierarchical self-assembly of nanoparticles

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Highly-extended self-supporting nanoporous Au and Au-Ag alloy thin films can be successfully prepared by a self-assembly method with metal nanoparticles as starting building blocks. The size, structure, and composition distribution of the synthesized nanoporous films were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and X-ray diffraction. The experimental results revealed that thermal activation and photoinduced attractive force of nanoparticles cause the particles to be assembled at the air-water interface. The pore size of this new nanoporous material can be controlled by varying the nanoparticle size.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2008-05
Language
English
Article Type
Article
Citation

JOURNAL OF MATERIALS CHEMISTRY, v.18, no.19, pp.2208 - 2212

ISSN
0959-9428
DOI
10.1039/b801864b
URI
http://hdl.handle.net/10203/88487
Appears in Collection
CH-Journal Papers(저널논문)
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